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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Credit Exposure (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2018
--- | --- | --- | ---
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | $ 1,655,703 | $ 1,659,535 | $ 1,401,334
Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 1,642,967 | 1,642,415 |
Special Mention |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 4,261 | 6,641 |
Substandard |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 8,475 | 10,479 |
Commercial and industrial |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 246,176 | 261,779 | 206,308
Commercial and industrial | Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 245,829 | 260,863 |
Commercial and industrial | Special Mention |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans |  | 224 |
Commercial and industrial | Substandard |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 347 | 692 |
Construction and development |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 250,852 | 237,503 | 193,909
Construction and development | Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 249,602 | 236,253 |
Construction and development | Substandard |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 1,250 | 1,250 |
Commercial real estate |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 581,926 | 582,519 | 450,076
Commercial real estate | Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 572,655 | 569,648 |
Commercial real estate | Special Mention |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 3,772 | 5,691 |
Commercial real estate | Substandard |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 5,499 | 7,180 |
Farmland |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 72,274 | 67,845 | 63,971
Farmland | Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 71,977 | 67,541 |
Farmland | Special Mention |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 47 | 49 |
Farmland | Substandard |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 250 | 255 |
1-4 family residential |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 390,618 | 393,067 | 377,278
1-4 family residential | Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 389,448 | 391,956 |
1-4 family residential | Special Mention |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 308 | 514 |
1-4 family residential | Substandard |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 862 | 597 |
Multi-family residential |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 37,430 | 38,386 | 37,992
Multi-family residential | Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 37,430 | 38,386 |
Consumer and Overdrafts |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 56,433 | 55,159 |
Consumer and Overdrafts | Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 56,375 | 55,055 |
Consumer and Overdrafts | Special Mention |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 20 | 48 |
Consumer and Overdrafts | Substandard |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 38 | 56 |
Agricultural |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 19,994 | 23,277 | $ 22,545
Agricultural | Pass |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 19,651 | 22,713 |
Agricultural | Special Mention |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | 114 | 115 |
Agricultural | Substandard |  |  |
Financing Receivable Recorded Investment [Line Items] |  |  |
Total loans | $ 229 | $ 449 |

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